24Vdc Input (Double Car Battery) Automotive Multiphase Sync-Buck Reference Design
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This high-efficiency, high-power reference design uses the LM5119 two-phase synchronous-buck controller to regulate 14.4V at 60A. This design can be used to supply single car battery power from a double battery system, often found in trucks. Features include input EMI filtering, output hot swap protection, input/output current monitoring and temperature monitoring.

  • Efficiency of 96% at Vin = 24V and 60A output
  • Very low output ripple voltage (20mVpp)
  • Internal 5V bias supply provides up to 0.5A
  • Input and output current monitoring
  • Output over-current protection

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(Output Voltage 1)
Vin (Min) (V)18
Vin (Max) (V)60
Vout (Nom) (V)14.4
Iout (Max) (A)60
Output Power (W)864
Input TypeDC
TopologyBuck- Multiphase

TI Devices (5)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
INA198  -16V to +80V, Low-/High-side, High-Speed, Voltage Output Current Sense Amplifier  Current sense amplifiers  Sample & Buy Not Available
LM50  ±2°C analog output temperature sensor, with 10mV/°C gain  Temperature sensors  Sample & Buy Not Available
LM5060  High-Side Protection Controller with Low Quiescent Current  Power switches  Sample & Buy View Design Kits & Evaluation Modules
LM5119  5.5-65V Wide Vin, Current Mode Dual Synchronous Buck Controller  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TPS54060  3.5V to 60V Input, 0.5A Step-Down Converter with Eco-Mode  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
INA198 Download Download
LM50 Download Download
LM5060 Download Download
LM5119 Download Download
TPS54060 Download Download
Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 3936 01 Oct 2015
Design files (5)
Title Type Size (KB) Date
ZIP 296 01 Oct 2015
ZIP 43722 01 Oct 2015
PDF 140 01 Oct 2015
PDF 137 01 Oct 2015
PDF 220 01 Oct 2015

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